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Network robustness - cap 8

 Consider a complex network subject to random failures and targeted attacks. Which of the following statements best characterizes network robustness ? a) Scale-free networks are equally robust against both random failures and targeted attacks due to their heavy-tailed degree distribution. b) Random networks (Erdős–Rényi type) typically remain connected longer under random attacks than scale-free networks with the same average degree. c) The robustness of a network is maximized when the degree distribution follows a power law with exponent close to 5. d) In scale-free networks, robustness to random node removal arises because most nodes have low degree, while vulnerability to targeted attacks results from dependence on high-degree hubs. e) None of the above.